Southwest Airlines Begins Daily Roundtrip Houston/Pittsburgh

Makes sense that Houston, the reigning champ as "energy capital of the world" and Pittsburgh, the challenger and on the ascendancy to the title, would have a direct airline flight between them. Until last weekend, there was one--United. United is now joined by a second direct flight every day: Southwest Airlines.

Southwest announced on Sunday they have begun a daily flight from Pittsburgh to Houston and back.

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